In flaming fire, inflicting vengeance on those who do not know God and on those who do not obey the gospel of our Lord Jesus.
2 Thessalonians 1:8

If the Gospel is only good news about an event, what does this mean by "obey the Gospel"? A Gospel without repentance and obedience is empty and false. Don't be fooled by people who say that God's wrath ended at the cross. Those who refuse to obey the laws of the Kingdom of God will be the object Yeshua's vengeance.